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Gumula S.,AGH w Krakowie | Hudy W.,University Pedagogiczny | Piaskowska-Silarska M.,University Pedagogiczny | Pytel K.,University Pedagogiczny
Przemysl Chemiczny | Year: 2015

Impact of CO2 and H2O content in the Earth atmosphere on the air temp, was considered to explain the reasons of the greenhouse effect.

Naworyta W.,AGH w Krakowie
Prace Naukowe Instytutu Gornictwa Politechniki Wroclawskiej | Year: 2013

The sense of determining the direction of reclamation and the meaningful content of this term have been critically presented against the background of the law regulations and the mining practice. A review of reclamation directions and methods for choosing the appropriate reclamation of post-mining terrains has been conducted. The kinds of terrains after rock quarrying have been described together with their distinctive characteristics which have decisive influence on the choice of the reclamation direction. The most important conditionings for the choice of the kind of reclamation have been analysed, including economic, social and natural factors. The importance of cost optimisation of the reclamation venture have been highlighted together with the costs of infrastructure maintenance costs after the reclamation process is finished. The necessity for adjusting the reclamation process of the post-mining objects to their future functions has been justified while considering local conditions, including the demography. The difference between the social expectancies for a specific method of reclamation and the actual need resulting from the municipality's requirements has been distinguished. Critical reference to the reclamation practice in Polish rock quarrying has been made. Attention has been paid to insufficient use of the potential of the post-mining terrains and the necessity to change this situation for the improvement of the industry's public image in a social perception.

Improving energy efficiency remains one of the main objectives of the Polish energy policy. The paper presents the results of an analysis of the potential for energy efficiency savings in the Polish housing sector. The matrix of representative groups of buildings (4 groups - single-family houses, multi-family houses, up to eight floor- and above eight floor-blocks of flats) was applied. The analysis covers a period of 2012-2030 and is based on the assumption that a constant seasonal decrease in demand for heat in already existing building will be maintained. For newly constructed buildings the demand for heat will be at the level of energy-efficient buildings. The results of the analysis carried out within this study positively validate the instruments introduced to improve energy efficiency in the Polish housing sector.

Szurlej A.,AGH w Krakowie | Kaminski J.,IGSMIE PAN | Suwala W.,AGH w Krakowie
Rynek Energii | Year: 2014

The European Union systematically strives to create the competitive natural gas market. In Poland, since July 1, 2007, the freedom of choice and change of the seller is entitled to all customers of electricity and natural gas, including households. In accordance with Energy Law, end users may individually benefit from the local network in order to purchase gas or electricity supplied from any vendor. Although the regulations for several years now allow the exercise of the TPA rule, in fact, only in the last years there has been a growing interest in this possibility. This paper describes the domestic natural gas market, with particular emphasis being brought to changes in the implementation of competition in the market. As a basic measure the number of changes of gas supplier was proposed. In some aspects, progress in the liberalisation of the gas market was compared to the electricity market, which is much more advanced in this aspect. In addition, the pace of liberalisation of the gas and electricity markets in Poland was compared with selected markets of EU member states, with the employment of the Herfindahl-Hirschman Index. The estimated impact of liberalisation on changes in price levels between countries was also discussed. The regulatory environment is very important for the intensification of efforts to liberalise fuels and energy markets.

Stapinski T.,AGH w Krakowie | MarszaLek K.,AGH w Krakowie | Jaglarz J.,Cracow University of Technology
Przeglad Elektrotechniczny | Year: 2014

In this paper authors analyzed the influence of antireflective coatings on glass surface of PV module and influence of ARC deposited on silicon surface of solar cells on optical properties of the system. The recommended values of thicknesses and refractive indices were estimated. These values are in a good agreement with results of optical measurements. © 2014, Wydawnictwo SIGMA - N O T Sp. z o.o. All rights reserved.

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